LT3512EMS#TRPBF

Overview

The LT3512EMS#TRPBF is a monolithic high voltage isolated flyback converter manufactured by Analog Devices Inc. It integrates a 60V switch and operates from input voltages up to 42V. The device supports adjustable switching frequencies ranging from 100kHz to 500kHz. It features an internal 12V regulator for bias supply, eliminating the need for auxiliary windings. The component is housed in a 12-lead MSOP package with exposed pad and is supplied in tape and reel packaging.

Feature Summary

• Integrates a high-voltage power switch capable of handling up to 60V drain-source voltage
• Includes an internal 12V regulator to provide bias current without requiring auxiliary transformer windings
• Supports programmable switching frequency adjustment via an external resistor to optimize transformer size and efficiency
• Features cycle-by-cycle current limiting and thermal shutdown protection for robust operation

Applications

• Isolated DC/DC conversion for industrial control systems
• Power supplies for telecommunications equipment
• Battery chargers requiring galvanic isolation
• General-purpose isolated power stages in embedded systems

Procurement Notes

Verify the specific suffix #TRPBF confirms tape and reel packaging rather than tube. Confirm the manufacturer is Analog Devices Inc. or Linear Technology. Ensure the part number matches the exact electrical specifications required for your design. Check for RoHS compliance status if mandated by your project requirements. Validate the package type is 12-lead MSOP with exposed pad.

Selection Notes

Select this component when an isolated flyback topology is required with integrated high-voltage switching. It is suitable for designs needing to minimize external component count by leveraging the internal bias regulator. Consider the maximum input voltage of 42V and output isolation requirements. Evaluate the thermal performance given the MSOP package constraints. Compare against non-isolated regulators if isolation is not strictly necessary.

Part Context

This part belongs to the LT3512 family of isolated flyback converters. It shares functional similarities with other high-voltage switching regulators but is distinct in its integrated bias regulation and isolation capabilities. The family targets applications requiring compact, efficient isolated power solutions without complex transformer drive circuits.

Replacement Considerations

LT3512EMSPBF is a verified substitute offering identical functionality in tube packaging instead of tape and reel.